Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
nasai-kubra:4884Muḥammad b. Bashhār > Muʿādh from my father > Qatādah > al-Ḥasan And Jābir b. Zayd

[Machine] On the authority of Al-Hasan and Jabir ibn Zaid, they said: "Whoever possesses a slave with a womb, he is free when he possesses her offspring."  

الكبرى للنسائي:٤٨٨٤أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ قَالَ حَدَّثَنَا مُعَاذٌ قَالَ حَدَّثَنِي أَبِي عَنْ قَتَادَةَ

عَنِ الْحَسَنِ وَجَابِرِ بْنِ زَيْدٍ قَالَا «مَنْ مَلَكَ ذَا رَحِمٍ فَهُوَ حُرٌّ إِذَا مَلَكَهُ عَتَقَ»